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Words that start with the prefix uni-

This list is for learners studying prefixes and word roots, especially uni-, which signals the idea of oneness or a single unit. Use it to practice spelling words that begin with uni-, connect the prefix to its meaning, and expand vocabulary used in everyday speech, science, and school subjects.

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Words that start with the prefix uni-

22 words
WordMeaningIn a sentenceSave
unicornnounA mythical creature resembling a white horse with a single horn projecting from its forehead.The children's book featured a unicorn galloping through an enchanted forest.
unicyclenounA vehicle with a single wheel, propelled by pedals and balanced by the rider.The circus performer juggled while riding a unicycle across the stage.
uniformadjectiveNot varying; the same in every part or every instance.The bricks were cut to a uniform size for easy stacking.
unifyverbTo bring separate parts or people together to form a single, united whole.The new leader worked hard to unify a party divided by years of infighting.
unionnounThe act of joining separate things together, or an organization representing workers' interests.The treaty marked the formal union of the two small kingdoms into one nation.
uniqueadjectiveBeing the only one of its kind, or unlike anything else in an important way.Each handmade bowl has a unique pattern.
unisexadjectiveDesigned to be suitable for or used by both men and women.The store sells unisex t-shirts that come in a range of neutral colors.
unisonnounAgreement or simultaneous action, especially singing or speaking together at the same pitch or moment.The whole choir sang the final verse together in perfect unison.
unitnounA single, complete thing regarded as a standard measure, component, or part of a larger whole.The meter is the standard unit of length in the metric system.
uniteverbTo join together or come together for a common purpose.The two rival groups united to fight for the same cause.
unitynounThe state of being joined together as a whole, or of acting and thinking in agreement.The team's unity was obvious in how smoothly they worked together under pressure.
universaladjectiveApplying to or shared by all people, cases, or things without exception.Access to clean, safe water should be considered a universal human right.
universenounAll of space and everything that exists within it, including planets, stars, and galaxies.Astronomers now estimate that the universe contains billions of separate galaxies.
universitynounAn institution of higher education offering degree programs in various academic subjects.She is currently studying biology at a large university in California.
univalentadjectiveHaving a valence, or combining power, of one; capable of forming a single chemical bond.Sodium is a univalent element that readily forms a single bond with chlorine.
unilateraladjectiveDone or decided by only one party, without the agreement of others involved.The president suddenly announced a unilateral decision to withdraw all troops.
unicellularadjectiveConsisting of only a single cell, as in the simplest forms of life.Bacteria are unicellular organisms that are visible only under a microscope.
unibrownounA single continuous eyebrow formed when eyebrow hair grows across the bridge of the nose.He decided to pluck his unibrow before the wedding photos.
unicameraladjectiveHaving a single legislative chamber or house, rather than two.Nebraska is the only U.S. state with a unicameral legislature.
uniformitynounThe quality of being the same or consistent throughout, without variation.The factory inspectors checked every product carefully for size uniformity.
unipolaradjectiveHaving or involving only one pole, center of power, or extreme, rather than two or more.Analysts debated whether the world had become a unipolar system after the war.
unisexualadjectiveHaving only one sex; relating to organisms or flowers with either male or female reproductive parts, not both.Unisexual flowers have either stamens or pistils, but not both.

What does the prefix uni- mean?

The prefix uni- comes from a Latin word meaning one, so words built on it usually involve a single unit or a coming together as one. Unity and union describe things joined into a whole, unicycle names a vehicle with one wheel, and unison describes people acting or speaking as a single voice at the same time.

Frequently asked questions

What does the prefix uni- mean?

Uni- comes from a Latin word meaning one, which is why words like unicycle, unify, and unity all relate to oneness or a single unit.